Magnetic Effects Of Current Question 111
Question: A current of 10A is passing through a long wire which has semicircular loop of the radius 20cm as shown in the figure. Magnetic field produced at the centre of the loop is [Orissa JEE 2003]
Options:
A) $ 10,\pi \mu T $
B) $ 5,\pi \mu T $
C) $ 4,\pi \mu T $
D) $ 2,\pi \mu T $
Show Answer
Answer:
Correct Answer: B
Solution:
$ Q=\frac{1}{2}m{{(2v)}^{2}} $
BETA
